Improvement in breech-loading ordnance



Fa SWALLO'W,

BREECH-LGADZNC: mmmxqcs.

NO. 189,329. Patenteci April 16, 15*?7.

FREEMAN 'M. swALLow, OF SPRINGFIELD, MASSACHUSETTS.

IMPROVEMENT IN BREECH-LOADING ORDNANCE.

Specification forming part of Letters Pateiit No. 189,329, dated April 10, 1877'; application filed d March 9, 1877'.

To all whom it may concern:

Be it known that 1, FREEMAN M. SWAL- LOW, of Springfield, in thecounty of Hampden and State of Massachusetts, have invented certain new and useful Improvements Pertaining to a Gannon, of which the following is a specification, reference being had to the accompanying drawings, where-- Figure l is a side elevation. Fig.2 is a top view. 7

The letter a denotes the cannon designed for firing metallic cartridges, hung by ,its trunnions, fixedly, by means of pins b, in the bearings c, rising from the axle 01, supported bywheels e. The rear open end of the cannon is closed by the laterally-swinging pivoted breech-block f, held to place by spring- -oatch g, and prevented from swinging past its proper position by the shoulder on the bandlef striking against the side of the cannon.

The breech-block is supported on and by the arch. The vertical part of the breech-block is perforated for allowing the firing-pin 2' access to the base of the cartridge, which, of course, contains fulminate in the base. This firing-pin is borne on the hammer j pivoted within the trail on shaft it, its impact given by the helical spring lcoiled around the shaftpin. The shaft-pin and hammer' are fixedly attached together, and the pivot-points or bearings'are given by the screws at running through the sides of the trail.

The" hammer is held in position of cooked by the detent-arm n pivoted to the trail, and its release for firing purposes is given by pulling backward on cord 0. The trail is made in two parts, 10 p, pivoted together at r, and by depressing or raising this joint the mouth of the cannon is correspondingly raised or low- I With the spring I, and the detent-arm n, pivoted within the trail, all combined and arranged to operate substantially as shown and described.

3. The cannon a with rear open end, the laterally-swinging breech-block f, perforated for the passage of the firing-pin, and the pivoted hammerj, provided with the firing-pin i, all combined substantially as described.

FREEMAN M. SVVAT'LO W.

Witnesses:

E. A. WEBSTER, -D. E. WEBSTER. 

